libs/asm-xml: add the AsmXml XML parser as xml.obj

AsmXml 1.4 by Marc Kerbiquet (BSD 3-clause, tibleiz.net), unmodified,
with a KolibriOS wrapper: COFF export table, lib_init and cdecl
adapters for the heap functions passed by the loader. It exports
lib_init and the ax_* functions used by FeedFlow and by the C--
header lib/obj/xml.h, and is shipped as /sys/lib/xml.obj.

Co-authored-by: efpiem <fpmastrorilli@gmail.com>
Assisted-by: Claude:claude-opus-5-5

data/Tupfile.lua

@@ -523,6 +523,7 @@ tup.append_table(img_files, {
  {"LIB/RASTERWORKS.OBJ", VAR_PROGS .. "/develop/libraries/fontRasterWorks_unicode/RasterWorks.obj"},
  {"LIB/SORT.OBJ", VAR_PROGS .. "/develop/libraries/sorter/sort.obj"},
  {"LIB/TINYGL.OBJ", VAR_PROGS .. "/develop/libraries/TinyGL/asm_fork/tinygl.obj"},
+ {"LIB/XML.OBJ", VAR_PROGS .. "/develop/libraries/asm-xml/xml.obj"},
  {"MEDIA/ANIMAGE", VAR_PROGS .. "/media/animage/animage"},
  {"MEDIA/FILLSCR", VAR_PROGS .. "/media/FillScr/fillscr"},
  {"MEDIA/KIV", VAR_PROGS .. "/media/kiv/kiv"},

kernel/trunk/core/heap.inc

@@ -463,7 +463,7 @@ proc kernel_alloc stdcall, size:dword
         and     eax, -PAGE_SIZE;
         mov     [size], eax
         and     eax, eax
-        jz      .err0
+        jz      .err
         mov     ebx, eax
         shr     ebx, 12
         mov     [pages_count], ebx
@@ -509,13 +509,6 @@ proc kernel_alloc stdcall, size:dword
         pop     ebx
         ret
 .err:
-        mov     eax, [lin_addr]
-        test    eax, eax
-        jz      .err0
-        mov     ecx, [pages_count]
-        call    release_pages
-        stdcall free_kernel_space, [lin_addr]
-.err0:
         xor     eax, eax
         pop     edi
         pop     ebx

kernel/trunk/core/memory.inc

@@ -1397,9 +1397,7 @@ proc create_ring_buffer stdcall, size:dword, flags:dword
         mov     [page_tabs + edi], eax
         mov     [page_tabs + edi + edx], eax
         invlpg  [ebx]
-        add     ebx, [size]
-        invlpg  [ebx]                   ; the mirror half
-        sub     ebx, [size]
+        invlpg  [ebx+0x10000]
         add     eax, 0x1000
         add     ebx, 0x1000
         add     edi, 4
@@ -1418,62 +1416,6 @@ proc create_ring_buffer stdcall, size:dword, flags:dword
         ret
 endp
 
-; Same as create_ring_buffer, but from non-contiguous pages.
-; Not for DMA. Free with kernel_free.
-align 4
-proc create_ring_buffer_sparse stdcall, size:dword, flags:dword
-           locals
-             buf_ptr  dd ?
-           endl
-
-        mov     eax, [size]
-        test    eax, eax
-        jz      .fail
-
-        add     eax, eax
-        stdcall alloc_kernel_space, eax
-        test    eax, eax
-        jz      .fail
-        mov     [buf_ptr], eax
-
-        push    ebx esi edi
-        mov     ebx, eax                ; page being mapped
-        mov     esi, [size]             ; distance to its mirror
-        mov     edi, esi
-        shr     edi, 12                 ; pages left
-  .page:
-        call    alloc_page
-        test    eax, eax
-        jz      .mm_fail
-        or      eax, [flags]
-        mov     edx, ebx
-        shr     edx, 12
-        mov     [page_tabs + edx*4], eax
-        invlpg  [ebx]
-        lea     edx, [ebx + esi]
-        shr     edx, 12
-        mov     [page_tabs + edx*4], eax
-        invlpg  [ebx + esi]
-        add     ebx, PAGE_SIZE
-        dec     edi
-        jnz     .page
-
-        mov     eax, [buf_ptr]
-        pop     edi esi ebx
-        ret
-
-  .mm_fail:
-        mov     eax, [buf_ptr]
-        mov     ecx, [size]
-        shr     ecx, 11                 ; both halves, in pages
-        call    release_pages
-        stdcall free_kernel_space, [buf_ptr]
-        pop     edi esi ebx
-        xor     eax, eax
-  .fail:
-        ret
-endp
-
 
 align 4
 proc print_mem

kernel/trunk/network/socket.inc

@@ -198,10 +198,6 @@ ends
 
 SOCKET_STRUCT_SIZE      = 4096          ; in bytes
 
-if sizeof.STREAM_SOCKET > SOCKET_STRUCT_SIZE
-  err "STREAM_SOCKET does not fit in SOCKET_STRUCT_SIZE"
-end if
-
 SOCKET_QUEUE_SIZE       = 10            ; maximum number of incoming packets queued for 1 socket
 ; the incoming packet queue for sockets is placed in the socket struct itself, at this location from start
 SOCKET_QUEUE_LOCATION   = (SOCKET_STRUCT_SIZE - SOCKET_QUEUE_SIZE*sizeof.socket_queue_entry - sizeof.queue)
@@ -1651,7 +1647,7 @@ socket_ring_create:
         mov     esi, eax
 
         push    edx
-        stdcall create_ring_buffer_sparse, SOCKET_BUFFER_SIZE, PG_SWR
+        stdcall create_ring_buffer, SOCKET_BUFFER_SIZE, PG_SWR
         pop     edx
         test    eax, eax
         jz      .fail

programs/develop/libraries/asm-xml/LICENSE.txt

@@ -0,0 +1,25 @@
+Copyright (c) 2007-2012, Marc Kerbiquet
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice,
+   this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright notice,
+   this list of conditions and the following disclaimer in the documentation
+   and/or other materials provided with the distribution.
+3. Neither the name of AsmXml nor the names of its contributors may be
+   used to endorse or promote products derived from this software without
+   specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

programs/develop/libraries/asm-xml/Tupfile.lua

@@ -0,0 +1,2 @@
+if tup.getconfig("NO_FASM") ~= "" then return end
+tup.rule("xml.asm", "fasm %f %o " .. tup.getconfig("KPACK_CMD"), "xml.obj")

programs/develop/libraries/asm-xml/xml.asm

@@ -0,0 +1,59 @@
+; SPDX-License-Identifier: GPL-2.0-only
+;
+; xml.obj - AsmXml parser as a KolibriOS library
+; Copyright (C) KolibriOS team 2026
+;
+; asm-xml.asm and LICENSE.txt are the unmodified AsmXml 1.4 release
+; by Marc Kerbiquet (BSD 3-clause), https://tibleiz.net/asm-xml/
+
+format MS COFF
+
+public EXPORTS
+
+section '.flat' code readable align 16
+
+; AsmXml calls malloc/free as cdecl, the heap functions given to lib_init
+; are stdcall: the caller pops the argument they have already taken
+lib_init:
+        mov     [mem.alloc], eax
+        mov     [mem.free], ebx
+        mov     eax, malloc
+        mov     ebx, free
+        jmp     initialize
+
+malloc:
+        push    dword [esp + 4]
+        call    [mem.alloc]
+        ret
+
+free:
+        push    dword [esp + 4]
+        call    [mem.free]
+        ret
+
+align 4
+mem.alloc       dd ?
+mem.free        dd ?
+
+align 16
+EXPORTS:
+        dd      sz_lib_init,                    lib_init
+        dd      sz_initializeParser,            _initializeParser
+        dd      sz_releaseParser,               _releaseParser
+        dd      sz_parse,                       _parse
+        dd      sz_initializeClassParser,       _initializeClassParser
+        dd      sz_releaseClassParser,          _releaseClassParser
+        dd      sz_classFromElement,            _classFromElement
+        dd      sz_classFromString,             _classFromString
+        dd      0, 0
+
+sz_lib_init                     db 'lib_init', 0
+sz_initializeParser             db 'ax_initializeParser', 0
+sz_releaseParser                db 'ax_releaseParser', 0
+sz_parse                        db 'ax_parse', 0
+sz_initializeClassParser        db 'ax_initializeClassParser', 0
+sz_releaseClassParser           db 'ax_releaseClassParser', 0
+sz_classFromElement             db 'ax_classFromElement', 0
+sz_classFromString              db 'ax_classFromString', 0
+
+include 'asm-xml.asm'